During a physical exam, your doctor will ask about your symptoms and look for noticeable swelling or lumps on your joints. Your doctor might hold your joint while moving your thumb, with pressure, against your wrist bone. If this movement produces a grinding sound, or causes pain or a gritty feeling, the cartilage has likely worn down, and the bones are rubbing against each other.
The first metacarpal bone or the metacarpal bone of the thumb is the first bone proximal to the thumb. It is connected to the trapezium of the carpus at the first carpometacarpal joint and to the proximal thumb phalanx at the first metacarpophalangeal joint. The first metacarpal bone is short and thick with a shaft thicker and broader than those of the other metacarpal bones.
The thumb has two bones - the distal phalange placed between the tip and the knuckle; and the proximal phalange extending between the knuckle and the base. The first metacarpal connects the thumb to the hand. A break or a crack in any of these bones is called the thumb fracture.
Thumb arthritis is common with aging and occurs when cartilage wears away from the ends of the bones that form the joint at the base of your thumb — also known as the carpometacarpal CMC joint. Thumb arthritis can cause severe pain, swelling, and decreased strength and range of motion, making it difficult to do simple tasks, such as turning doorknobs and opening jars. Treatment generally involves a combination of medication and splints.
A broken thumb is a serious problem. It affects the ability to grasp items. A broken thumb can increase the risk of arthritis later in life.
The metacarpals are the five bones of the hand that connect the carpal bones wrist to the proximal phalanges fingers. Phalanges is plural, phalanx is singular. Because of the special role the thumb plays in grasping, fractures of the thumb metacarpal are a bit different from fractures of the finger metacarpals.
In a normal joint, cartilage covers the ends of the bones and allows them to move smoothly and painlessly against one another. In osteoarthritis or degenerative arthritisthe cartilage layer wears out, resulting in direct contact between the bones. In the hand, the second most common joint to develop osteoarthritis is the joint at the base of the thumb.
Although these therapies may not always provide long-term relief, for most people with thumb arthritis, they can effectively lessen symptoms, and surgery may not be necessary. Surgery for arthritis of the thumb is usually a treatment of last resort. The thumb is designed to give you a wide range of motion, enabling you to pinch, grip and grasp objects.
The thumb is the first digit finger of the hand. When a person is standing in the medical anatomical position where the palm is facing to the frontthe thumb is the outermost digit. The Medical Latin English noun for thumb is pollex compare hallux for big toeand the corresponding adjective for thumb is pollical. The English word "finger" has two senses, even in the context of appendages of a single typical human hand:.